公开(公告)号：US08565329B2

公开(公告)日：2013-10-22

申请号：US12476066

申请日：2009-06-01

申请人： Haralabos Papadopoulos ,  Carl-Erik W. Sundberg

发明人： Haralabos Papadopoulos ,  Carl-Erik W. Sundberg

IPC分类号： H04L1/06

CPC分类号： H04L25/03216 ,  H04L1/0055 ,  H04L1/0618 ,  H04L25/0204 ,  H04L25/0246 ,  H04L25/03318 ,  H04L2025/03414 ,  H04L2025/0342

摘要： A method and apparatus is disclosed herein for a modified soft output M-algorithm. In one embodiment, the soft output M-algorithm is employed by a receiver in a wireless communication system to receive information-bearing signals wirelessly transmitted from the transmitter wirelessly transmitted, the receiver comprising: an inner decoder structure having a multiple-in multiple-out (MIMO) joint demapper to perform joint inner demapping over each tone, the joint demapper being operable to apply a soft-output M-type algorithm to identify survivor candidates at each depth in a detection tree being searched for each tone, including surviving full-length candidates, based on at least one metric and at least one other criterion, where a number of best alternatives from every level of the tree are expanded along with one or more alternatives selected meeting the at least one other criterion and where soft-output related information is collected and stored for each bit, and an outer decoder operable with the inner decoder to perform iterative decoding.

摘要翻译： 本文公开了一种用于修改的软输出M算法的方法和装置。 在一个实施例中，软输出M算法被无线通信系统中的接收机采用以接收从无线发送的发射机无线发射的信息承载信号，所述接收机包括：内部解码器结构，其具有多进多出 （MIMO）联合解映射器，以在每个音调上执行联合内部解映射，所述联合解映射器可操作以应用软输出M型算法来识别正在搜索每个音调的检测树中的每个深度处的幸存候选者， 基于至少一个度量和至少一个其他标准，其中来自所述树的每个级别的多个最佳替代物与满足所述至少一个其他标准的一种或多种选择一起扩展，并且其中软输出相关 针对每个位收集和存储信息，以及可以与内部解码器一起执行迭代解码的外部解码器。

公开(公告)号：US08059732B2

公开(公告)日：2011-11-15

申请号：US11939353

申请日：2007-11-13

申请人： Haralabos Papadopoulos ,  Carl-Erik W. Sundberg

发明人： Haralabos Papadopoulos ,  Carl-Erik W. Sundberg

IPC分类号： H04K1/10

CPC分类号： H04L1/0668 ,  H04B7/022 ,  H04L1/0041 ,  H04L1/005 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0625 ,  H04L1/0631 ,  H04L27/2626 ,  H04L27/2647

摘要： A method, apparatus and system are disclosed herein for wireless transmission from multiple non-collocated base stations. In one embodiment, the system comprises one or more terminals; and at least two base stations wirelessly communicating information-bearing signals from a set of antenna elements dispersed over multiple, non-collocated base stations to the one or more terminals using coding systems.

摘要翻译： 本文公开了一种用于从多个非并置基站进行无线传输的方法，装置和系统。 在一个实施例中，系统包括一个或多个终端; 以及至少两个基站，使用编码系统将分散在多个非并置基站上的一组天线元件的信息承载信号无线地传送到一个或多个终端。

公开(公告)号：US08688154B2

公开(公告)日：2014-04-01

申请号：US13223762

申请日：2011-09-01

申请人： Haralabos Papadopoulos ,  Sean A. Ramprashad ,  Chenwei Wang

发明人： Haralabos Papadopoulos ,  Sean A. Ramprashad ,  Chenwei Wang

IPC分类号： H04W24/02 ,  H04B15/00

CPC分类号： H04B7/0452 ,  H04B7/024 ,  H04B7/0822 ,  H04B7/0871 ,  H04W52/243 ,  H04W52/30

摘要： A method and system are disclosed herein for power allocation and/or clustering in a wireless communication system that uses blind interference alignment. In one embodiment, the system comprises a plurality of receivers, where each receiver in the plurality has a multi-mode antenna with a single radio frequency (RF) chain that is operable in a plurality of antenna modes, and wherein each receiver shifts between the plurality of antenna modes in a predetermined manner. The system also includes a plurality of base stations to perform cluster-based transmission, each base station in the plurality of base stations having one or more transmitters having a transmit antenna and being operable to communicate with one or more of receivers in the plurality of receivers using a blind interference alignment (BIA) scheme, and wherein the plurality of base stations are grouped in different clusters at different times according to cluster patterns.

摘要翻译： 本文公开了一种使用盲目干扰对准的无线通信系统中的功率分配和/或聚类的方法和系统。 在一个实施例中，系统包括多个接收机，其中多个接收机中的每个接收机具有多模天线，该多模天线具有可在多个天线模式中操作的单个射频（RF）链，并且其中每个接收机在 多个天线方式。 该系统还包括多个基站以执行基于簇的传输，多个基站中的每个基站具有一个或多个具有发射天线的发射机，并且可操作以与多个接收机中的一个或多个接收机进行通信 使用盲目干扰对准（BIA）方案，并且其中所述多个基站根据群集模式在不同时间被分组成不同的群集。

公开(公告)号：US08787259B2

公开(公告)日：2014-07-22

申请号：US13239167

申请日：2011-09-21

申请人： Haralabos Papadopoulos ,  Sean A. Ramprashad ,  Chenwei Wang

发明人： Haralabos Papadopoulos ,  Sean A. Ramprashad ,  Chenwei Wang

IPC分类号： H04W4/00 ,  H04B7/08 ,  H04B7/04 ,  H04B7/02

CPC分类号： H04B7/0822 ,  H04B7/024 ,  H04B7/0413

摘要： A method, apparatus, and wireless communication system is disclosed herein for operating a BIA code structure in a system. In one embodiment, the wireless communication system comprises a plurality of receivers, wherein each receiver in the plurality having a multi-mode antenna with a single radio frequency (RF) chain that is operable in a plurality of antenna modes, and further wherein each receiver shifts between the plurality of antenna modes in a predetermined manner. The wireless communication system also includes a plurality of base stations in a cell topology to perform downlink transmissions to the plurality of receivers, each base station in the plurality of base stations having one or more transmitters having a transmit antenna and being operable to communicate with one or more of receivers in the plurality of receivers using a multi-user MIMO (MU-MIMO)-based blind interference alignment (BIA) scheme, wherein each active base station in the plurality of base stations operates an identical BIA code structure in a given transmission resource.

摘要翻译： 本文公开了一种用于在系统中操作BIA代码结构的方法，装置和无线通信系统。 在一个实施例中，无线通信系统包括多个接收机，其中多个接收机中的每个接收机具有多模天线，其具有可在多个天线模式中操作的单个射频（RF）链，并且其中每个接收机 以预定的方式在多个天线模式之间移动。 无线通信系统还包括在小区拓扑中的多个基站以对多个接收机执行下行链路传输，所述多个基站中的每个基站具有一个或多个具有发射天线的发射机，并且可操作以与一个 使用基于多用户MIMO（MU-MIMO）的盲干扰对准（BIA）方案在多个接收机中使用多个接收机，其中多个基站中的每个有源基站在给定的基站中操作相同的BIA码结构 传输资源。

公开(公告)号：US20100111232A1

公开(公告)日：2010-05-06

申请号：US12558367

申请日：2009-09-11

申请人： Haralabos Papadopoulos ,  Ming-Yang Chen ,  Sean A. Ramprashad

发明人： Haralabos Papadopoulos ,  Ming-Yang Chen ,  Sean A. Ramprashad

IPC分类号： H04L27/06

CPC分类号： H04L1/06 ,  H04L1/005 ,  H04L25/03216 ,  H04L27/2647

摘要： The techniques and components described herein may improve the performance for a class of reduced-complexity receiver designs for coded OFDM MIMO systems with bit interleaved coded modulation. The receiver structures described are soft-input soft-output inner/outer decoder receiver structures that include one or more of the following: 1) an inner decoder that includes a linear front-end followed by a limited tree-search based on a soft-output M-algorithm; 2) a conventional near-optimal or optimal decoder for the outer binary code; and 3) iterative decoding (ID), whereby decoding (output) information is passed from one decoder module as input to the other and used to refine and improve the inner/outer decoding module outputs.

摘要翻译： 本文描述的技术和组件可以改进具有比特交织编码调制的编码OFDM MIMO系统的一类降低复杂度的接收机设计的性能。 所描述的接收器结构是包括以下一个或多个的软输入软输出内/外解码器接收器结构：1）内部解码器，其包括线性前端，随后是基于软启动的有限树搜索， 输出M算法; 2）用于外部二进制码的常规近似或最优解码器; 和3）迭代解码（ID），由此解码（输出）信息作为输入从一个解码器模块传递到另一个解码器模块，并用于细化和改进内/外解码模块输出。

公开(公告)号：US08855221B2

公开(公告)日：2014-10-07

申请号：US12558367

申请日：2009-09-11

申请人： Haralabos Papadopoulos ,  Ming-Yang Chen ,  Sean A. Ramprashad

发明人： Haralabos Papadopoulos ,  Ming-Yang Chen ,  Sean A. Ramprashad

IPC分类号： H04K1/10 ,  H04L1/06 ,  H04L25/03 ,  H04L27/26 ,  H04L1/00

CPC分类号： H04L1/06 ,  H04L1/005 ,  H04L25/03216 ,  H04L27/2647

摘要： The techniques and components described herein may improve the performance for a class of reduced-complexity receiver designs for coded OFDM MIMO systems with bit interleaved coded modulation. The receiver structures described are soft-input soft-output inner/outer decoder receiver structures that include one or more of the following: 1) an inner decoder that includes a linear front-end followed by a limited tree-search based on a soft-output M-algorithm; 2) a conventional near-optimal or optimal decoder for the outer binary code; and 3) iterative decoding (ID), whereby decoding (output) information is passed from one decoder module as input to the other and used to refine and improve the inner/outer decoding module outputs.

摘要翻译： 本文描述的技术和组件可以改进具有比特交织编码调制的编码OFDM MIMO系统的一类降低复杂度的接收机设计的性能。 所描述的接收器结构是包括以下一个或多个的软输入软输出内/外解码器接收器结构：1）内部解码器，其包括线性前端，随后是基于软启动的有限树搜索， 输出M算法; 2）用于外部二进制码的常规近似或最优解码器; 和3）迭代解码（ID），由此解码（输出）信息作为输入从一个解码器模块传递到另一个解码器模块，并用于细化和改进内/外解码模块输出。

公开(公告)号：US20120069824A1

公开(公告)日：2012-03-22

申请号：US13239167

申请日：2011-09-21

申请人： Haralabos Papadopoulos ,  Sean A. Ramprashad ,  Chenwei Wang

发明人： Haralabos Papadopoulos ,  Sean A. Ramprashad ,  Chenwei Wang

IPC分类号： H04W72/04 ,  H04W52/04 ,  H04J3/00

CPC分类号： H04B7/0822 ,  H04B7/024 ,  H04B7/0413

摘要： A method, apparatus, and wireless communication system is disclosed herein for operating a BIA code structure in a system. In one embodiment, the wireless communication system comprises a plurality of receivers, wherein each receiver in the plurality having a multi-mode antenna with a single radio frequency (RF) chain that is operable in a plurality of antenna modes, and further wherein each receiver shifts between the plurality of antenna modes in a predetermined manner. The wireless communication system also includes a plurality of base stations in a cell topology to perform downlink transmissions to the plurality of receivers, each base station in the plurality of base stations having one or more transmitters having a transmit antenna and being operable to communicate with one or more of receivers in the plurality of receivers using a multi-user MIMO (MU-MIMO)-based blind interference alignment (BIA) scheme, wherein each active base station in the plurality of base stations operates an identical BIA code structure in a given transmission resource.

摘要翻译： 本文公开了一种用于在系统中操作BIA代码结构的方法，装置和无线通信系统。 在一个实施例中，无线通信系统包括多个接收机，其中多个接收机中的每个接收机具有多模天线，其具有可在多个天线模式中操作的单个射频（RF）链，并且其中每个接收机 以预定的方式在多个天线模式之间移动。 无线通信系统还包括在小区拓扑中的多个基站以对多个接收机执行下行链路传输，所述多个基站中的每个基站具有一个或多个具有发射天线的发射机，并且可操作以与一个 使用基于多用户MIMO（MU-MIMO）的盲干扰对准（BIA）方案在多个接收机中使用多个接收机，其中多个基站中的每个有源基站在给定的基站中操作相同的BIA码结构 传输资源。

公开(公告)号：US20120113953A1

公开(公告)日：2012-05-10

申请号：US13288241

申请日：2011-11-03

申请人： Haralabos Papadopoulos ,  Sean Ramprashad ,  Giuseppe Caire

发明人： Haralabos Papadopoulos ,  Sean Ramprashad ,  Giuseppe Caire

IPC分类号： H04W74/04 ,  H04W72/04

CPC分类号： H04B7/0452 ,  H04B7/024 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0037 ,  H04L5/0069

摘要： A method and apparatus is disclosed herein for scheduling and transmission for downlink multi-user MIMO (MU-MIMO). In one embodiment, the method comprises allocating a subset of time-frequency resources in the time-frequency plane to each distinct bin class, where each bin class comprises one or more bins of user terminals across the topology, and wherein user terminals in the one or more bins of each bin class are served across the topology by the subset of time-frequency resources. The method also comprises performing joint downlink MU-MIMO transmission using a plurality of bin class-dependent wireless transmission architectures at the plurality of base stations, where one or more bin classes is associated with one of the plurality of bin class-dependent architectures, and where each of the plurality of bin class-dependent architectures use different combinations of scheduling training and MU-MIMO transmission across the topology.

摘要翻译： 本文公开了一种用于下行链路多用户MIMO（MU-MIMO）的调度和传输的方法和装置。 在一个实施例中，该方法包括将时间 - 频率平面中的时间 - 频率资源的子集分配给每个不同的分类类别，其中每个分类包括跨越拓扑的一个或多个用户终端的小区，并且其中一个中的用户终端 或者更多的每个bin类的bin通过时间 - 频率资源子集在整个拓扑中提供。 该方法还包括使用在多个基站处的多个类别相关的无线传输架构来执行联合的下行链路MU-MIMO传输，其中一个或多个分组类别与多个类别依赖架构中的一个相关联，以及 其中所述多个二进制类别依赖架构中的每一个使用跨越所述拓扑的调度训练和MU-MIMO传输的不同组合。

公开(公告)号：US08638746B2

公开(公告)日：2014-01-28

申请号：US13288241

申请日：2011-11-03

申请人： Haralabos Papadopoulos ,  Sean Ramprashad ,  Giuseppe Caire

发明人： Haralabos Papadopoulos ,  Sean Ramprashad ,  Giuseppe Caire

IPC分类号： H04Q7/00

CPC分类号： H04B7/0452 ,  H04B7/024 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0037 ,  H04L5/0069

摘要： A method and apparatus is disclosed herein for scheduling and transmission for downlink multi-user MIMO (MU-MIMO). In one embodiment, the method comprises allocating a subset of time-frequency resources in the time-frequency plane to each distinct bin class, where each bin class comprises one or more bins of user terminals across the topology, and wherein user terminals in the one or more bins of each bin class are served across the topology by the subset of time-frequency resources. The method also comprises performing joint downlink MU-MIMO transmission using a plurality of bin class-dependent wireless transmission architectures at the plurality of base stations, where one or more bin classes is associated with one of the plurality of bin class-dependent architectures, and where each of the plurality of bin class-dependent architectures use different combinations of scheduling training and MU-MIMO transmission across the topology.

摘要翻译： 本文公开了一种用于下行链路多用户MIMO（MU-MIMO）的调度和传输的方法和装置。 在一个实施例中，该方法包括将时间 - 频率平面中的时间 - 频率资源的子集分配给每个不同的分类类别，其中每个分类包括跨越拓扑的一个或多个用户终端的小区，并且其中一个中的用户终端 或者更多的每个bin类的bin通过时间 - 频率资源子集在整个拓扑中提供。 该方法还包括使用在多个基站处的多个类别相关的无线传输架构来执行联合的下行链路MU-MIMO传输，其中一个或多个分组类别与多个类别依赖架构中的一个相关联，以及 其中所述多个二进制类别依赖架构中的每一个使用跨越所述拓扑的调度训练和MU-MIMO传输的不同组合。

公开(公告)号：US08194760B2

公开(公告)日：2012-06-05

申请号：US11754903

申请日：2007-05-29

申请人： Haralabos Papadopoulos

发明人： Haralabos Papadopoulos

IPC分类号： H04K1/10

CPC分类号： H04B7/024 ,  H04B7/0617 ,  H04B7/0669 ,  H04L1/0625

摘要： A method and apparatus is disclosed herein for performing distributed space-time coding. In one embodiment, the distributed space-time coding is used for downlink communications in wireless radio networks. In one embodiment, the method comprises storing information-bearing sequence at two or more base stations in a group of base stations; and transmitting data corresponding to the information-bearing sequence from a number of base stations for receipt by a receiver of a user, where the number of base stations is not globally known a priori and indicates a diversity of order, such that the diversity of order M is obtained if a total of M number of antennas spread over multiple base stations transmit the information-bearing sequence, where M is an integer.

摘要翻译： 本文公开了一种用于执行分布式时空编码的方法和装置。 在一个实施例中，分布式空时编码被用于无线无线电网络中的下行链路通信。 在一个实施例中，所述方法包括在一组基站中的两个或多个基站处存储信息承载序列; 以及从多个基站发送对应于信息承载序列的数据，以供用户的接收机接收，其中基站的数量不是全局已知的，并且指示顺序的多样性，使得顺序的分集 如果在多个基站上分布的M个天线的总数发送信息承载序列，其中M是整数，则获得M。